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- Author:
- Adina Cazacu-De Luca, et al. ; Anne E. Nigra; Ana Navas-Acien; Show all 3 Authors
- Source:
- Environmental pollution 2022 v.313 pp. 120113
- ISSN:
- 0269-7491
- Subject:
- arsenic; carcinogens; household income; humans; pollution; secondary education; New England region
- Abstract:
- ... Inorganic arsenic is a known human carcinogen and is routinely detected in US community water systems (CWSs). Inequalities in CWS arsenic exist across broad sociodemographic subgroups. Our objective was to evaluate the county-level association between socioeconomic vulnerability and CWS arsenic concentrations across the US. We evaluated previously developed, population-weighted CWS arsenic concent ...
- DOI:
- 10.1016/j.envpol.2022.120113
- https://doi.org/10.1016/j.envpol.2022.120113
- Author:
- Constantin Cazacu, et al. ; Serban Danielescu; Mihai Cristian Adamescu; Sorin Cheval; Alexandru Dumitrescu; Mihaela Borcan; Carmen Postolache; Show all 7 Authors
- Source:
- Water 2022 v.14 no.15 pp. -
- ISSN:
- 2073-4441
- Subject:
- Soil and Water Assessment Tool model; climate; climate change; snow; soil water content; stream flow; temperature; temporal variation; water stress; watersheds; Romania
- Abstract:
- ... The output extracted from CNRM, MPR, and ICHEC Global Circulation Models for RCP 4.5 and RCP 8.5 Representative Concentration Pathways has been used in conjunction with the SWAT model for evaluating the impacts of future climate changes on hydrological processes in a Romanian catchment (Neajlov, 3720 km² area) in the short (2021–2050) and long term (2071–2100). During the growing season, precipita ...
- DOI:
- 10.3390/w14152325
- https://doi.org/10.3390/w14152325
- Author:
- Georgeta Cazacu, et al. ; Oana Chirilă; Marian I. Totolin; Diana Ciolacu; Loredana Niţă; Mioara Drobotă; Cornelia Vasile; Show all 7 Authors
- Source:
- Journal of polymers and the environment 2021 v.29 no.3 pp. 900-921
- ISSN:
- 1566-2543
- Subject:
- Fourier transform infrared spectroscopy; ammonium lignosulfonate; atmospheric pressure; biocomposites; chemical treatment; cold; environment; fluorescence; lactic acid; lignin; motivation; nuclear magnetic resonance spectroscopy; oleic acid
- Abstract:
- ... A new method for chemical modification of lignin product under dielectric barrier discharge (DBD) plasma at atmospheric pressure is proposed. The motivation of this study is to obtain from ammonium lignosulfonate powder (ALS) and carboxylic acids (oleic acid, OA and lactic acid, LA) and butyrolactone (BL), new products with improved functionalities (ALS-LA, ALS-OA and ALS-BL), which may be used in ...
- DOI:
- 10.1007/s10924-020-01926-1
- https://doi.org/10.1007/s10924-020-01926-1
- Author:
- Alexandru Cazacu
- Source:
- Travaux du Muséum national d'histoire naturelle "Grigore Antipa." 2019 v.62 no.1 pp. 27-30
- ISSN:
- 2247-0735
- Subject:
- Blattodea; Mantodea; Romania
- Abstract:
- ... Iris oratoria is recorded for the first time in Alba, Vrancea and Călărași counties, Romania. The presence of the species in Romania is not unexpected, as it is also present in the neighbouring countries and its tendency of migrating north is well known. ...
- DOI:
- 10.3897/travaux.62.e38596
- https://doi.org/10.3897/travaux.62.e38596
- Author:
- Ana Cazacu, et al. ; Florin-Daniel Lipșa; Elena-Laura Ursu; Cristian Ursu; Eugen Ulea; Show all 5 Authors
- Source:
- Agronomy 2020 v.10 no.8 pp. -
- ISSN:
- 2073-4395
- Subject:
- Fusarium oxysporum; antifungal properties; carbon nanoparticles; chitosan; crop production; culture media; financial economics; fungal growth; fungicides; nanogold; plant biology; plant diseases and disorders; plant pathogenic fungi; soil types; tomatoes
- Abstract:
- ... Nanoparticles are implemented in different biotechnological fields, and there is interest in their use in plant biology. Nanotechnology can help overcome the persistent limitations of using conventional fungicides in the management of plant diseases, contributing to a safer environment. Hence, this study is focused on evaluating the behavior of nanoparticles on two different strains of Fusarium ox ...
- DOI:
- 10.3390/agronomy10081143
- https://doi.org/10.3390/agronomy10081143
- Author:
- Ana Cazacu, et al. ; Ilie Bodale; Gabriela Mihalache; Vladut Achiţei; Gabriel-Ciprian Teliban; Vasile Stoleru; Show all 6 Authors
- Source:
- Agriculture (Basel) 2021 v.11 no.4 pp. -
- ISSN:
- 2077-0472
- Subject:
- agriculture; bulbs; developmental stages; electrical conductivity; equipment; nutrient uptake; phenology; phosphorus; potassium; quantitative analysis; sap; tomatoes; vegetative growth; xylem
- Abstract:
- ... Nutrient consumption by plants depends on the growth stage and environmental conditions. In general, plants take up species of elements at different speeds. We monitored and recorded the electrical charge flow through xylem sap of tomato plants (Brillante F1) using femto/picoammeter equipment (Keysight B2981A). This technique evaluates the nutrient uptake of tomato treated with the most common mac ...
- DOI:
- 10.3390/agriculture11040292
- https://doi.org/10.3390/agriculture11040292
- Author:
- Constantin Cazacu, et al. ; Cristina Popescu; Mihaela Oprina-Pavelescu; Valentin Dinu; Francis J. Burdon; Marie Anne Eurie Forio; Benjamin Kupilas; Nikolai Friberg; Peter Goethals; Brendan G. McKie; Geta Rîșnoveanu; Show all 11 Authors
- Source:
- Water 2021 v.13 no.2 pp. -
- ISSN:
- 2073-4441
- Subject:
- Chrysomelidae; Cicadidae; Clubionidae; Coccinellidae; Culicidae; Curculionidae; Formicidae; Lycosidae; Staphylinidae; Tetragnathidae; Tettigoniidae; Thomisidae; agricultural landscapes; agrochemicals; biodiversity; community structure; humans; invertebrates; nonpoint source pollution; riparian vegetation; streams; vegetation structure; water
- Abstract:
- ... Stream and terrestrial ecosystems are intimately connected by riparian zones that support high biodiversity but are also vulnerable to human impacts. Landscape disturbances, overgrazing, and diffuse pollution of agrochemicals threaten riparian biodiversity and the delivery of ecosystem services in agricultural landscapes. We assessed how terrestrial invertebrate communities respond to changes in r ...
- DOI:
- 10.3390/w13020188
- https://doi.org/10.3390/w13020188
- Author:
- Constantin Cazacu, et al. ; Herman Hummel; Valerie Kalle; Louise Bienfait; Yolande Boyer; Marco Heurich; Juraj Svajda; Mihai Adamescu; Félix Manuel Medina; Rasa Morkūnė; Arturas Razinkovas-Baziukas; Dimitris Poursanidis; Orhideja Tasevska; Ajman Al Malla; Ana Stritih; Christian Rossi; Salvador Arenas-Castro; Claudia Carvalho-Santos; Izak P.J. Smit; Emiliana Valentini; Alessandra Nguyen Xuan; Daniel Orenstein; Antonello Provenzale; Rutger de Wit; Christiaan Hummel; Show all 25 Authors
- Source:
- Environmental and sustainability indicators 2022 v.14 pp. 100179
- ISSN:
- 2665-9727
- Subject:
- conservation areas; ecosystem management; ecosystems; environmental factors; issues and policy; socioeconomics
- Abstract:
- ... Assessing the environmental status of Protected Areas (PAs) is a challenging issue. To indicate that status, the identification of a common set of variables that are scientifically sound, and easy to assess and monitor by the PA practitioners, is particularly important. In this study, a set of 27 Essential Variables (EVs) for PA management was selected in a bottom-up process from 67 harmonised var ...
- DOI:
- 10.1016/j.indic.2022.100179
- https://doi.org/10.1016/j.indic.2022.100179
- Author:
- C. Cazacu, et al. ; C.A. Hummel; Y.A.M. Mellink; L.J. Bienfait; M.C. Adamescu; M. Heurich; F.M. Medina; R. Morkūnė; J. Švajda; H. Hummel; Show all 10 Authors
- Source:
- Journal for nature conservation 2021 v.64 pp. 126065
- ISSN:
- 1617-1381
- Subject:
- conservation areas; conservation status; cost effectiveness; issues and policy; national parks; protocols; socioeconomics; Europe
- Abstract:
- ... Protected Area (PA) managers and policy makers need to determine and demonstrate the effectiveness of PA management and keep track of the conservation status in ways that are practical, scientifically sound and comparable among PAs in various terrestrial and aquatic environments. As most existing methods for measuring the managerial efficiency of PAs are restricted to specific elements of the mana ...
- DOI:
- 10.1016/j.jnc.2021.126065
- https://doi.org/10.1016/j.jnc.2021.126065
- Author:
- Maria Cazacu, et al. ; Mirela-Fernanda Zaltariov; Adrian Bele; Lavinia Vasiliu; Luiza Gradinaru; Nicoleta Vornicu; Carmen Racles; Show all 7 Authors
- Source:
- Journal of hazardous materials 2018 v.341 pp. 390-403
- ISSN:
- 0304-3894
- Subject:
- bioactive properties; dipping; electrospray ionization mass spectrometry; energy; energy-dispersive X-ray analysis; infrared spectroscopy; marine environment; nuclear magnetic resonance spectroscopy; organic compounds; pH; saline water; scanning electron microscopy; seawater; ultraviolet-visible spectroscopy; water power; wettability
- Abstract:
- ... A series of elastomers, either natural or synthetic (some of them commercial, while others prepared in the laboratory), suitable for use as active elements in devices for wave energy harvesting, were evaluated concerning their behavior and effects on the marine environment. In this aim, the elastomer films, initially evaluated regarding their aspect, structure, surface wettability, and tolerance o ...
- DOI:
- 10.1016/j.jhazmat.2017.07.068
- https://doi.org/10.1016/j.jhazmat.2017.07.068
- Author:
- Maria Cazacu, et al. ; Mihail Iacob; Adrian Bele; Anton Airinei; Show all 4 Authors
- Source:
- Colloids and surfaces 2017 v.522 pp. 66-73
- ISSN:
- 0927-7757
- Subject:
- crosslinking; energy; hydrophobicity; mechanical properties; mixing; molecular weight; optical properties; silane; silicone; water vapor
- Abstract:
- ... A hydrophobic filler with the siloxane skeleton, fluorinated polyhedral oligomeric silsesquioxane (F-POSS), was incorporated in varying percentages (2.5, 5, and 10 wt%) in a polydimethylsiloxane-α,ω-diol (PDMS) of molecular weight 230,000g/mol, in solution. Some structural characteristics and properties derived from F-POSS (low polarizability, weak intermolecular force, low surface energy), simila ...
- DOI:
- 10.1016/j.colsurfa.2017.02.045
- https://doi.org/10.1016/j.colsurfa.2017.02.045
- Author:
- Constantin Cazacu, et al. ; Christiaan Hummel; Dimitris Poursanidis; Daniel Orenstein; Michael Elliott; Mihai Cristian Adamescu; Guy Ziv; Nektarios Chrysoulakis; Jaap van der Meer; Herman Hummel; Show all 10 Authors
- Source:
- Science of the total environment 2019 v.651 pp. 2432-2443
- ISSN:
- 0048-9697
- Subject:
- classification; conservation areas; ecosystem services; environmental management
- Abstract:
- ... For many years, Protected Areas (PA) have been an important tool for conserving nature. Recently, also societal aspects have been introduced into PA management via the introduction of the Ecosystem Services (ES) approach. This review discusses the historical background of PAs, PA management, and the ES approach. We then discuss the relevance and applicability of the ES approach for PA management, ...
- DOI:
- 10.1016/j.scitotenv.2018.10.033
- https://doi.org/10.1016/j.scitotenv.2018.10.033
- Author:
- Marius-Mihai Cazacu, et al. ; Lucian Sfîcă; Iulian Iordache; Pavel Ichim; Alina Leahu; Silviu Gurlui; Cătălin-Răzvan Trif; Show all 7 Authors
- Source:
- Present Environment and Sustainable Development 2018 v.12 no.2 pp. 47-69
- ISSN:
- 2284-7820
- Subject:
- aerosols; air pollution; climate; environmental protection; governmental programs and projects; metropolitan areas; monitoring; optical properties; particulates; regression analysis; relative humidity; sustainable development; temperature profiles; Romania
- Abstract:
- ... The aim of this study is to evaluate the role of the weather conditions and local climate on the temporal and spatial variability of particulate matters (PM 10) in Iași city which is facing major pollution problems in the recent years. Daily data from 4 monitoring stations of Environmental Protection Agency-Iași–for main weather parameters and particulate matters – and the temperature from an inne ...
- DOI:
- 10.2478/pesd-2018-0029
- https://doi.org/10.2478/pesd-2018-0029
- Author:
- Maria Cazacu, et al. ; Georgiana-Oana Turcan-Trofin; Mirela-Fernanda Zaltariov; Mihail Iacob; Vasile Tiron; Florin Branza; Carmen Racles; Show all 7 Authors
- Source:
- Colloids and surfaces 2019 v.580 pp. 123756
- ISSN:
- 0927-7757
- Subject:
- X-ray diffraction; carboxylic acids; catalytic activity; copper; energy-dispersive X-ray analysis; hydrogen peroxide; hydrophobicity; infrared spectroscopy; ligands; moieties; reflectance spectroscopy; silicon; sorption; thermal analysis; thermal stability; transmission electron microscopy; wide-angle X-ray scattering
- Abstract:
- ... Cyclotri- and tetrasiloxanes having a methyl group and a carboxylic acid coupled through thioether bridge at each silicon atom were used to coordinate copper(II). The amphiphilic character conferred by the co-existence of the two moieties with opposite behaviour on the silicon atom gives the molecule the ability to form aggregates in solution. When copper salt is added, the metal is quickly coordi ...
- DOI:
- 10.1016/j.colsurfa.2019.123756
- https://doi.org/10.1016/j.colsurfa.2019.123756
- Author:
- C. Cazacu, et al. ; J.M. Holzer; C.M. Adamescu; R. Díaz-Delgado; J. Dick; P.F. Méndez; L. Santamaría; D.E. Orenstein; Show all 8 Authors
- Source:
- Biological conservation 2019 pp. -
- ISSN:
- 0006-3207
- Subject:
- entrepreneurship; focus groups; funding; information exchange; interviews; issues and policy; natural resources conservation; planning; qualitative analysis; river deltas; social environment; stakeholders; Romania; Scotland; Spain
- Abstract:
- ... Researchers in multiple, related fields that address complex social and environmental challenges, have shown ongoing enthusiasm for applying transdisciplinary social-ecological systems (SES) research to promote sustainability. However, few studies have evaluated the effectiveness of SES approach, assessed its achievements, and identified challenges to its implementation toward knowledge production ...
- DOI:
- 10.1016/j.biocon.2019.108228
- https://doi.org/10.1016/j.biocon.2019.108228
- Author:
- G. Cazacu, et al. ; R. P. Dumitriu; I. Stoica; D. S. Vasilescu; C. Vasile; Show all 5 Authors
- Source:
- Journal of polymers and the environment 2018 v.26 no.3 pp. 1100-1112
- ISSN:
- 1566-2543
- Subject:
- Fourier transform infrared spectroscopy; active food packaging; ammonium lignosulfonate; antioxidant activity; atomic force microscopy; crosslinking; hydrogen bonding; microstructure; optical properties; rheology; scanning electron microscopy; sodium alginate; surface roughness
- Abstract:
- ... Sodium alginate/ammonium lignosulfonate blend solutions and thin films with different compositions have been prepared and studied. The rheology of the film forming solutions was comparatively evaluated and was established the effect of lignosulfonate incorporation onto sodium alginate solution properties and partial compatibility of components was found. The shear-thinning behaviour of the ALG/LS ...
- DOI:
- 10.1007/s10924-017-1018-1
- https://doi.org/10.1007/s10924-017-1018-1
- Author:
- Cazacu Maria, et al. ; Tugui Codrin; Ursu Cristian; Sacarescu Liviu; Asandulesa Mihai; Stoian George; Ababei Gabriel; Show all 7 Authors
- Source:
- ACS sustainable chemistry 2017 v.5 no.9 pp. 7851-7858
- ISSN:
- 2168-0485
- Subject:
- deformation; diameter; electric power; electrical equipment; electrodes; energy; energy density; humans; hysteresis; mechanical properties; rubber; silicone; silver; technology; water power
- Abstract:
- ... Dielectric elastomer transducers (DETs), essentially consisting of highly deformable insulating films sandwiched between electrodes, are able to convert mechanical work in electrical energy and vice versa. Although still immature, these represent a simple and low-cost alternative to already known technologies for harvesting energy from renewable sources, in this case converting environmental mecha ...
- DOI:
- 10.1021/acssuschemeng.7b01354
- https://doi.org/10.1021/acssuschemeng.7b01354
- Author:
- Constantin Cazacu, et al. ; Francis J. Burdon; Ellinor Ramberg; Jasmina Sargac; Marie Anne Eurie Forio; Nancy de Saeyer; Petra Thea Mutinova; Therese Fosholt Moe; Mihaela Oprina Pavelescu; Valentin Dinu; Felix Witing; Benjamin Kupilas; Ulf Grandin; Martin Volk; Geta Rîşnoveanu; Peter Goethals; Nikolai Friberg; Richard K. Johnson; Brendan G. McKie; Show all 19 Authors
- Source:
- Water 2020 v.12 no.4 pp. -
- ISSN:
- 2073-4441
- Subject:
- anthropogenic activities; basins; biodiversity; climate change; ecosystems; exhibitions; freshwater; habitat destruction; habitats; human development; knowledge; lakes; land use; landscapes; macroinvertebrates; materials; methodology; pollution; pressure; protocols; riparian areas; riparian buffers; rivers; streams; Belgium; Norway; Romania; Sweden
- Abstract:
- ... Developing a general, predictive understanding of ecological systems requires knowing how much structural and functional relationships can cross scales and contexts. Here, we introduce the CROSSLINK project that investigates the role of forested riparian buffers in modified European landscapes by measuring a wide range of ecosystem attributes in stream-riparian networks. CROSSLINK involves replica ...
- DOI:
- 10.3390/w12041178
- https://doi.org/10.3390/w12041178
- Author:
- Maria Cazacu, et al. ; Angelica Vlad; Mirela-Fernanda Zaltariov; Sergiu Shova; Ghenadie Novitchi; Cyrille Train; Show all 6 Authors
- Source:
- RSC advances 2016 v.6 no.44 pp. 37412-37423
- ISSN:
- 2046-2069
- Subject:
- Fourier transform infrared spectroscopy; X-ray diffraction; ambient temperature; carbon dioxide; coordination polymers; crystal structure; dimethylformamide; ferrimagnetic materials; ions; ligands; magnetism; manganese; nitrogen; sorption; thermogravimetry; water vapor
- Abstract:
- ... A bent V-shaped silicon-containing linker, bis(p-carboxyphenyl)diphenylsilane (H₂cpdps), has been used to synthesize two coordination polymers, [Mn₅(cpdps)(HCOO)₂(H₂O)₂(DMF)₄]·6DMF (1) (DMF – dimethylformamide) and [Mn₃(μ-H₂O)₂(Hcpdps)₂(cpdps)₂(DMF)₂]·2DMF·12H₂O (2). The crystal structure of both compounds was determined by single-crystal X-ray diffraction. In complex 1, pentanuclear manganese(ii) ...
- DOI:
- 10.1039/c6ra03969c
- https://doi.org/10.1039/c6ra03969c
- Author:
- Maria Cazacu, et al. ; Adrian Bele; George Stiubianu; Cristian-Dragos Varganici; Mircea Ignat; Show all 5 Authors
- Source:
- Journal of materials science 2015 v.50 no.20 pp. 6822-6832
- ISSN:
- 0022-2461
- Subject:
- barium titanate; crosslinking; electric power; electrodes; mechanical properties; molecular weight; silica; silicone; temperature
- Abstract:
- ... A strategy, consisting in the use in tandem of two active fillers in different ratios with complementary effects: silica mainly as a reinforcing agent and barium titanate as dielectric permittivity enhancer, was proposed to optimize the electromechanical properties of the silicone elastomers. A high molecular mass polydimethylsiloxane-α,ω-diol (M w = 642000 g mol⁻¹) was used as a matrix to prepare ...
- DOI:
- 10.1007/s10853-015-9239-y
- https://doi.org/10.1007/s10853-015-9239-y
- Author:
- Georgeta Cazacu, et al. ; Raluca Nicoleta Darie-Nita; Oana Chirila; Marian Totolin; Mihai Asandulesa; Diana Elena Ciolacu; Joanna Ludwiczak; Cornelia Vasile; Show all 8 Authors
- Source:
- Journal of polymers and the environment 2017 v.25 no.3 pp. 884-902
- ISSN:
- 1566-2543
- Subject:
- activation energy; ammonium lignosulfonate; biocomposites; biodegradability; cold; crystal structure; dielectric properties; environmental degradation; hydrophilicity; melting; mixing; polylactic acid; radio waves; rheological properties; temperature; thermal properties
- Abstract:
- ... Ammonium lignosulfonate was modified with carboxylic acids (lactic, oleic) and butyrolactone by physical non-polluting radio frequency cold plasma method. Modified lignosulfonates/polylactic acid (PLA)-based biocomposites with enhanced dielectric and thermal properties have been prepared by melt mixing technique. Some modified lignosulfonates improved processability and rheological properties of P ...
- DOI:
- 10.1007/s10924-016-0868-2
- https://doi.org/10.1007/s10924-016-0868-2
- Author:
- Ana Cazacu, et al. ; Daniel Costel Galeş; Lucia Carmen Trincă; Cătălina Anişoara Peptu; Gerard Jităreanu; Show all 5 Authors
- Source:
- Geoderma 2016 v.267 pp. 102-111
- ISSN:
- 0016-7061
- Subject:
- Chernozems; analysis of variance; bulk density; chlorophyll; corn; corn cobs; crops; drought; field experimentation; hydrogels; laboratory experimentation; pods; polyacrylamide; porosity; potassium; scanning electron microscopy; soil water; soybeans
- Abstract:
- ... Aquasorb is claimed to ensure the controlled release of water under drought condition, which could significantly reduce the hydric stress of agricultural crops. The aim of the study was to evaluate the interaction between cambic chernozem soil and a hydrophilic polymer (Aquasorb) derived from polyacrylamide and potassium acrylate. The laboratory experiment investigated the interactions between soi ...
- DOI:
- 10.1016/j.geoderma.2015.12.008
- https://doi.org/10.1016/j.geoderma.2015.12.008
- Author:
- M. Cazacu, et al. ; A. Bele; G. Stiubianu; S. Vlad; Show all 4 Authors
- Source:
- RSC advances 2014 v.4 no.102 pp. 58522-58529
- ISSN:
- 2046-2069
- Subject:
- barium titanate; catalysts; cross-linking reagents; crosslinking; dielectric properties; energy; molecular weight; nanocomposites; nanoparticles; nanorods; polydimethylsiloxane; silane; sorption; surfactants; thermal properties
- Abstract:
- ... A high molecular weight polydimethylsiloxane-α,ω-diol, synthesized in the lab, was used as a matrix for nanocomposites. Barium titanate nanoparticles, either cubic or nanorods, were obtained by a hydrothermal procedure and used as a filler. In order to ensure a good compatibility with the matrix, the filler was surface treated with a commercial surfactant. A highly reactive trifunctional silane wa ...
- DOI:
- 10.1039/c4ra09903f
- https://doi.org/10.1039/c4ra09903f
- Author:
- Maria Cazacu, et al. ; Carmen Racles; Mihai Iacob; Maria Butnaru; Liviu Sacarescu; Show all 5 Authors
- Source:
- Colloids and Surfaces A: Physicochemical and Engineering Aspects 2014 v.448 pp. 160-168
- ISSN:
- 0927-7757
- Subject:
- biocompatibility; cell viability; cytotoxicity; dispersions; drugs; encapsulation; energy-dispersive X-ray analysis; hydrophobicity; magnetite; nanoparticles; nystatin; oleic acid; solubilization; surfactants; thermal degradation; transmission electron microscopy
- Abstract:
- ... Siloxane surfactants containing tromethamol or carboxylate groups, with very good surface properties, are tested for the first time for biocompatibility using MTT cytotoxicity test. They are used for encapsulation of superparamagnetic iron oxide nanoparticles (SPION), and of a combination of these with nystatin as model un-soluble drug, in order to obtain stable aqueous dispersions. The initial ma ...
- DOI:
- 10.1016/j.colsurfa.2014.02.029
- https://doi.org/10.1016/j.colsurfa.2014.02.029
- Author:
- M. Cazacu, et al. ; M. Iacob; G. Stiubianu; C. Tugui; L. Ursu; M. Ignat; C. Turta; Show all 7 Authors
- Source:
- RSC advances 2015 v.5 no.56 pp. 45439-45445
- ISSN:
- 2046-2069
- Subject:
- Fourier transform infrared spectroscopy; chemical precipitation; crosslinking; dielectric properties; dielectrics; energy-dispersive X-ray analysis; goethite; iron oxides; molecular weight; nanocomposites; nanoparticles; nanorods; silica; silicone; temperature; transmission electron microscopy
- Abstract:
- ... Iron oxide (goethite) with a nanorod morphology was prepared by a chemical precipitation method and characterized by FTIR, EDX, TEM, WAXD. This was used as an active filler to prepare dielectric elastomer nanocomposites by its incorporation, besides silica, in a silicone matrix consisting in a high molecular weight polydimethylsiloxane-α,ω-diol (PDMS). The nanocomposites were processed as films, s ...
- DOI:
- 10.1039/c5ra03765d
- https://doi.org/10.1039/c5ra03765d
- Author:
- Cazacu Maria, et al. ; Zaltariov Mirela-Fernanda; Sacarescu Liviu; Vlad Angelica; Novitchi Ghenadie; Train Cyrille; Shova Sergiu; Arion Vladimir B.; Show all 8 Authors
- Source:
- Macromolecules 2016 v.49 no.17 pp. 6163-6172
- ISSN:
- 1520-5835
- Subject:
- chloroform; coordination polymers; dicarboxylic acids; differential scanning calorimetry; dimethylformamide; ferrimagnetic materials; glass transition; hydrophilicity; light scattering; magnetism; manganese; manganese chloride; micelles; moieties; oxygen; scanning electron microscopy; small-angle X-ray scattering; sodium; temperature; transmission electron microscopy
- Abstract:
- ... The reaction of MnCl₂·4H₂O with salicylaldoxime (H₂salox) and the sodium salt of 1,3-bis(carboxypropyl)tetramethyldisiloxane (H₂L) in a 1:1:1 molar ratio led to the self-assembly of {[Mn₆O₂(salox)₆(H₂salox)(H₂O)₃(μ-L)]H₂salox·1.2H₂O}ₙ, a 1D coordination polymer consisting of hexamanganese(III) salicylaldoximate cluster as secondary building unit (SBU) and tetramethyldisiloxane-based dicarboxylate ...
- DOI:
- 10.1021/acs.macromol.6b01149
- https://doi.org/10.1021/acs.macromol.6b01149
- Author:
- Maria Cazacu, et al. ; Mihaela Dascalu; Valentina E. Musteata; Loredana Vacareanu; Carmen Racles; Show all 5 Authors
- Source:
- RSC advances 2015 v.5 no.120 pp. 99193-99200
- ISSN:
- 2046-2069
- Subject:
- Fourier transform infrared spectroscopy; X-ray photoelectron spectroscopy; crosslinking; dielectric spectroscopy; differential scanning calorimetry; ferrocenes; glycols; polymers; scanning electron microscopy; thermogravimetry; urethane
- Abstract:
- ... Three new poly(siloxane-urethane) crosslinked structures (PSFUs) were prepared from 1,1′-diisocyanatoferrocene (Fc(NCO)₂), and two siloxane diols in different proportions, i.e. α,ω-bis(hydroxybutyl)oligodimethylsiloxane (HS-1) and a hybrid diol containing hydrolysable triethoxy (–Si(–O–Et)₃) groups (HS-2). The formation of the urethane groups along the polymer backbone was first confirmed by the p ...
- DOI:
- 10.1039/c5ra15290a
- https://doi.org/10.1039/c5ra15290a
- Author:
- Cazacu Georgeta, et al. ; Chirila Oana; Totolin Marian; Dobromir Marius; Vasile Cornelia; Show all 5 Authors
- Source:
- Industrial & Engineering Chemistry Research 2013 v.52 no.37 pp. 13264-13271
- ISSN:
- 1520-5045
- Subject:
- Fourier transform infrared spectroscopy; X-ray photoelectron spectroscopy; butyric acid; chemistry; cold; differential scanning calorimetry; engineering; lignin; nuclear magnetic resonance spectroscopy; reflectance; scanning electron microscopy; sustainable technology; thermal properties; thermogravimetry
- Abstract:
- ... The modification of organosolv lignin powder (ALCELL) with different carboxylic acids such as oleic, lactic, and butyric acids and butyrolactone under cold plasma discharge has been performed. The X-ray photoelectron spectroscopy (XPS), attenuated total reflectance Fourier transform infrared (ATR-FTIR), and ¹H NMR spectroscopy, scanning electron microscopy (SEM), and thermal methods (differential ...
- DOI:
- 10.1021/ie4015183
- https://doi.org/10.1021/ie4015183
- Author:
- Maria Cazacu, et al. ; Mirela-Fernanda Zaltariov; Angelica Vlad; Sergiu Shova; Mihaela Balan; Carmen Racles; Show all 6 Authors
- Source:
- Tetrahedron 2014 v.70 pp. 2661-2668
- ISSN:
- 0040-4020
- Subject:
- Fourier transform infrared spectroscopy; X-ray diffraction; cations; chemical reactions; copper; copper hydroxide; crystal structure; hydrogen bonding; ligands; methanol; nuclear magnetic resonance spectroscopy; potassium; sodium; temperature; thermal properties
- Abstract:
- ... The new dicarboxylic acid, 1,3-bis(p-carboxyphenylene-ester-methylene)tetramethyldisiloxane (H2L, 1) was obtained by treating 1,3-bis(chloromethyl)-1,1,3,3-tetramethyldisiloxane with a mixture of terephthalic acid and terephthalic acid sodium salt in a 1:1 ratio. In this approach, besides the desired compound 1 (33 wt % yield), the condensation cyclic dimer 2 (7 wt % yield) and an oligomer 3 (10 w ...
- DOI:
- 10.1016/j.tet.2014.02.061
- https://doi.org/10.1016/j.tet.2014.02.061
- Author:
- Cazacu Maria, et al. ; Pamfil Daniela; Nistor Manuela Tatiana; Zemljič Lidija Fras; Vereştiuc Liliana; Vasile Cornelia; Show all 6 Authors
- Source:
- Industrial & Engineering Chemistry Research 2014 v.53 no.10 pp. 3865-3879
- ISSN:
- 1520-5045
- Subject:
- Fourier transform infrared spectroscopy; adhesion; collagen; denaturation; maleic anhydrides; moieties; molecular weight; nuclear magnetic resonance spectroscopy; particle size; temperature; thermal analysis; thermal stability; tissue engineering; titration; viscosity; volatile compounds
- Abstract:
- ... Porous modified collagens with vinyl groups were synthesized by reaction with 2,3-dimethylmaleic anhydride or citraconic anhydride. The structure of modified collagen was assessed by analytical determination of the amino groups in collagen and spectroscopic methods (Fourier transform infrared (FT-IR) and proton nuclear magnetic resonance (¹H NMR)). The amount of protonated amino groups and carboxy ...
- DOI:
- 10.1021/ie403563r
- https://doi.org/10.1021/ie403563r
- Author:
- M. Cazacu, et al. ; A. Bele; G. Stiubianu; S. Vlad; C. Tugui; C. D. Varganici; L. Matricala; D. Ionita; D. Timpu; Show all 9 Authors
- Source:
- RSC advances 2016 v.6 no.11 pp. 8941-8955
- ISSN:
- 2046-2069
- Subject:
- X-ray diffraction; atomic force microscopy; crystal structure; dielectric properties; dielectric spectroscopy; differential scanning calorimetry; energy conversion; energy-dispersive X-ray analysis; marine environment; phase transition; scanning electron microscopy; seawater; silicone; surface roughness; ultraviolet radiation; viscoelasticity; water power; wide-angle X-ray scattering
- Abstract:
- ... A series of silicone–barium titanate composites (multiple specimens of each sample), designed as dielectric elastomeric films to be used as active elements in wave energy conversion devices, were immersed in artificial sea water in pseudo-dynamic conditions. While some of specimens were extracted after half a year and subsequently subjected to UV irradiation for 500 h (ASW1/2 + UV procedure), the ...
- DOI:
- 10.1039/c5ra22780a
- https://doi.org/10.1039/c5ra22780a
- Author:
- Maria Cazacu, et al. ; Carmen Racles; Mihaela Alexandru; Adrian Bele; Valentina E. Musteata; Dorina M. Opris; Show all 6 Authors
- Source:
- RSC advances 2014 v.4 no.71 pp. 37620-37628
- ISSN:
- 2046-2069
- Subject:
- Fourier transform infrared spectroscopy; ambient temperature; composite polymers; cyanides; dielectric properties; differential scanning calorimetry; glass transition temperature; moieties; nuclear magnetic resonance spectroscopy; organosilicon compounds; polydimethylsiloxane
- Abstract:
- ... New polymers with tuneable dielectric properties were prepared by modifying trimethylsilyl end-terminated poly(methylhydro)siloxane with polar γ-cyanopropyl groups. The amount of polar groups was tuned by adjusting the allyl cyanide/n-hexene ratio in poly(methylhydro)siloxane co-hydrosilylation. The copolymers were characterized by FTIR and NMR spectroscopy. The distribution of the polar groups al ...
- DOI:
- 10.1039/c4ra06955b
- https://doi.org/10.1039/c4ra06955b
- Author:
- M. Cazacu, et al. ; M. Iacob; D. Sirbu; C. Tugui; G. Stiubianu; L. Sacarescu; V. Cozan; A. Zeleňáková; E. Čižmár; A. Feher; Show all 10 Authors
- Source:
- RSC advances 2015 v.5 no.77 pp. 62563-62570
- ISSN:
- 2046-2069
- Subject:
- X-ray diffraction; acetates; amines; iron; iron oxides; ligands; nanoparticles; nanowires; oleic acid; small-angle X-ray scattering; spectroscopy; surfactants; thermal degradation; thermal stability; trichloroacetic acid; wide-angle X-ray scattering
- Abstract:
- ... The thermal decomposition of μ3-oxo trinuclear iron(iii) acetate in presence of dodecylamine and oleic acid, in trichloroacetic acid at 320 °C was optimized to obtain iron oxide nanoparticles with pure nanowire morphology. The amount of oleic acid having a surfactant role, beside the ligand exchange for acetate, was used as a control parameter. The size and morphology of the resulted particles wer ...
- DOI:
- 10.1039/c5ra10469f
- https://doi.org/10.1039/c5ra10469f
- Author:
- Constantin Cazacu, et al. ; Raluca Ioana Băncilă; Dan Cogălniceanu; Rodica Plăiaşu; Marian Tudor; Tibor Hartel; Show all 6 Authors
- Source:
- Ecological indicators 2014 v.45 pp. 219-226
- ISSN:
- 1470-160X
- Subject:
- amphibians; cost effectiveness; herpetofauna; inventories; reptiles; species diversity; temperate zones
- Abstract:
- ... Species inventories provide the basic information for biodiversity studies. Designing cost-effective species inventories is important in estimating the species richness or the number of additional species expected in a study area. Complete species inventories are difficult to achieve and a variety of estimation methods are available to counter the underestimation of species richness associated wit ...
- DOI:
- 10.1016/j.ecolind.2014.04.005
- https://doi.org/10.1016/j.ecolind.2014.04.005
- Author:
- M.M. Cazacu, et al. ; A. Papayannis; D. Nicolae; P. Kokkalis; I. Binietoglou; C. Talianu; L. Belegante; G. Tsaknakis; I. Vetres; L. Ilic; Show all 10 Authors
- Source:
- Science of the total environment 2014 v.500-501 pp. 277-294
- ISSN:
- 0048-9697
- Subject:
- aerosols; air; biomass; burning; case studies; lidar; mixing; photometers; simulation models; troposphere; Greece; Romania
- Abstract:
- ... A coordinated experimental campaign aiming to study the aerosol optical, size and mass properties was organized in September 2012, in selected sites in Greece and Romania. It was based on the synergy of lidar and sunphotometers. In this paper we focus on a specific campaign period (23–24 September), where mixed type aerosols (Saharan dust, biomass burning and continental) were confined from the Pl ...
- DOI:
- 10.1016/j.scitotenv.2014.08.101
- https://doi.org/10.1016/j.scitotenv.2014.08.101
- Author:
- Cazacu, Maria, et al. ; Dragan, Ecaterina Stela; Nistor, Alexandra; Show all 3 Authors
- Source:
- Journal of polymer science 2009 v.47 no.24 pp. 6801-6813
- ISSN:
- 0887-624X
- Subject:
- Fourier transform infrared spectroscopy; catalysts; crosslinking; freeze drying; hydrocolloids; pH; scanning electron microscopy; siloxanes; sorption; thermal stability; thermogravimetry; water vapor
- Abstract:
- ... Ionic organic/siloxane networks containing quaternary ammonium salt (QAS) sequences in the cross-linking bridges were obtained by the Menshutkin reaction of oligo(N,N-dimethylaminoethylmethacrylate) (ODMAEM) with a telechelic chloroalkylated siloxane (CAS), such as 1,3-bis-(chloromethyl)-1,1,3,3-tetramethyldisiloxane, 1,3-bis-(chloropropyl)-1,1,3,3-tetramethyldisiloxane, and α,ω-bis(chloromethyl) ...
- DOI:
- 10.1002/pola.23720
- https://doi.org/10.1002/pola.23720
- Author:
- M. Cazacu, et al. ; C. Racles; A. Bele; M. Dascalu; V. E. Musteata; C. D. Varganici; D. Ionita; S. Vlad; S. J. Dünki; D. M. Opris; Show all 10 Authors
- Source:
- RSC advances 2015 v.5 no.72 pp. 58428-58438
- ISSN:
- 2046-2069
- Subject:
- hydrolysis; modulus of elasticity; moieties; molecular weight; organosilicon compounds; polydimethylsiloxane
- Abstract:
- ... Elastic materials with increased permittivity (ε′) were obtained in a three-step process starting from a hydroxyl end-functionalized polydimethylsiloxane (PDMS) of a high molecular weight (Mw = 139 kDa), trimethylsilyl end-blocked silicones that carry hydrosilane, cyanopropyl and hexyl groups Pₓ (where x represents the mol% of cyanopropyl groups), and tetraethoxysilane (TEOS). The hydrosilane grou ...
- DOI:
- 10.1039/c5ra06865g
- https://doi.org/10.1039/c5ra06865g
- Author:
- Cazacu, Maria, et al. ; Racles, Carmen; Airinei, Anton; Alexandru, Mihaela; Vlad, Angelica; Show all 5 Authors
- Source:
- Journal of polymer science 2009 v.47 no.21 pp. 5845-5852
- ISSN:
- 0887-624X
- Subject:
- dimethylformamide; light scattering; methylene chloride; polyamides; scanning electron microscopy; spectroscopy; temperature; viscometry
- Abstract:
- ... A ferrocenyl-siloxane polyamide, poly{1,1'-ferrocene-diamide-[1,3-bis(propylene)tetramethyldisiloxane]}, FAS, prepared by polycondensation in solution (methylene chloride) of 1,1'-di(chlorocarbonyl)ferrocene with 1,3-bis(aminopropyl)tetramethyldisiloxane has been dissolved in various concentrations in the range 0-1.5 g/dL in dimethylformamide. The solutions were investigated by tensiometry, viscom ...
- DOI:
- 10.1002/pola.23630
- https://doi.org/10.1002/pola.23630
- Author:
- M. Cazacu, et al. ; M. Iacob; C. Racles; M. Ignat; V. Cozan; L. Sacarescu; D. Timpu; M. Kajňaková; M. Botko; A. Feher; C. Turta; Show all 11 Authors
- Source:
- RSC advances 2014 v.4 no.12 pp. 6293-6299
- ISSN:
- 2046-2069
- Subject:
- acetates; amines; coatings; energy; energy-dispersive X-ray analysis; ferromagnetism; ligands; light microscopy; nanoparticles; oleic acid; oxides; solvents; temperature; thermal degradation; thermal stability; thermogravimetry; trichloroacetic acid
- Abstract:
- ... Organic-coated iron–chromium oxide (chromite) nanoparticles have been prepared by using the thermal decomposition procedure. For this purpose, the substrate – bimetallic acetate – was treated with oleic acid and dodecylamine as co-ligands in trichloroacetic acid solvent at high temperature (320 °C). The main characteristics and behaviors of the obtained nanoparticles were investigated by combined ...
- DOI:
- 10.1039/c3ra47072e
- https://doi.org/10.1039/c3ra47072e
- Author:
- Cazacu, Adinela, et al. ; Legrand, Yves-Marie; Pasc, Andreea; Nasr, Gihane; Van der Lee, Arie; Mahon, Eugene; Barboiu, Mihail; Show all 7 Authors
- Source:
- Proceedings of the National Academy of Sciences of the United States of America 2009 v.106 no.20 pp. 8117-8122
- ISSN:
- 0027-8424
- Subject:
- X-ray diffraction; cations; hydrophobicity; ion channels; salts; silica
- Abstract:
- ... Constitutional self-instructed membranes were developed and used for mimicking the adaptive structural functionality of natural ion-channel systems. These membranes are based on dynamic hybrid materials in which the functional self-organized macrocycles are reversibly connected with the inorganic silica through hydrophobic noncovalent interactions. Supramolecular columnar ion-channel architectures ...
- DOI:
- 10.1073/pnas.0813257106
- PubMed:
- 19416909
- PubMed Central:
- PMC2674937
- https://doi.org/10.1073/pnas.0813257106
41. Assessment of ecosystem integrity and service gradients across Europe using the LTER Europe network
- Author:
- Constantin Cazacu, et al. ; Stefan Stoll; Mark Frenzel; Benjamin Burkhard; Mihai Adamescu; Algirdas Augustaitis; Cornelia Baeßler; Francisco J. Bonet; Maria Laura Carranza; Georgia L. Cosor; Ricardo Díaz-Delgado; Ulf Grandin; Peter Haase; Heikki Hämäläinen; Rob Loke; Jörg Müller; Angela Stanisci; Tomasz Staszewski; Felix Müller; Show all 19 Authors
- Source:
- Ecological modelling 2015 v.295 pp. 75-87
- ISSN:
- 0304-3800
- Subject:
- ecosystem services; ecosystems; land cover; landscapes; models; temperature; uncertainty; vegetation types; Bulgaria; Italy; Spain; Sweden
- Abstract:
- ... Better integration of knowledge from ecological, social and economic science is necessary to advance the understanding and modelling of socio-ecological systems. To model ecosystem integrity (EI) and ecosystem services (ES) at the landscape scale, assessment matrices are commonly used. These matrices assign capacities to provide different services to different land cover types. We revised such an ...
- DOI:
- 10.1016/j.ecolmodel.2014.06.019
- https://doi.org/10.1016/j.ecolmodel.2014.06.019
- Author:
- Cazacu-Davidescu, L.M., et al. ; Kostyra, H.; Marciniak-Darmochwal, K.; Kostyra, E.; Show all 4 Authors
- Source:
- Journal of the science of food and agriculture 2005 v.85 no.6 pp. 948-954
- ISSN:
- 0022-5142
- Subject:
- peas; albumins; glycation; glycosylation; hexoses; nucleic acids; zinc; amino acid composition; enzymatic hydrolysis; pepsin; digestion; digestibility; food processing
- Abstract:
- ... The aim of this study was to investigate the influence of non-enzymatic glycosylation (glycation) on the susceptibility of pea albumins to pepsin hydrolysis. It was proved that the aqueous albumin extract is de facto a nucleo-glyco-metalloprotein complex. The non-enzymatic glycosylation of pea albumins decreased the content of nucleic acids, hexoses and zinc, which bound to this protein. Glycated ...
- DOI:
- 10.1002/jsfa.2047
- https://doi.org/10.1002/jsfa.2047
- Author:
- Constantin Cazacu, et al. ; Benjamin Burkhard; Joachim Maes; Marion B. Potschin-Young; Fernando Santos-Martín; Davide Geneletti; Pavel Stoev; Leena Kopperoinen; Cristian Mihai Adamescu; Blal Adem Esmail; Ildikó Arany; Andy Arnell; Mario Balzan; David N. Barton; Pieter van Beukering; Sabine Bicking; Paulo Alexandre Vieira Borges; Bilyana Borisova; Leon Braat; Luke M Brander; Svetla Bratanova-Doncheva; Steven Broekx; Claire Brown; Neville Crossman; Bálint Czúcz; Jan Daněk; Rudolf de Groot; Daniel Depellegrin; Panayotis Dimopoulos; Nora Elvinger; Markus Erhard; Nora Fagerholm; Jana Frélichová; Adrienne Grêt-Regamey; Margarita Grudova; Roy Haines-Young; Ola Inghe; Tamas Kristof Kallay; Tamara Kirin; Hermann Klug; Ioannis P Kokkoris; Iskra Konovska; Marion Kruse; Iliyana Kuzmova; Manfred Lange; Inge Liekens; Alon Lotan; Damian Lowicki; Sandra Luque; Cristina Marta-Pedroso; Andrzej Mizgajski; Laura Mononen; Sara Mulder; Felix Müller; Stoyan Nedkov; Mariana Nikolova; Hannah Östergård; Lyubomir Penev; Paulo Pereira; Kati Pitkänen; Tobias Plieninger; Sven-Erik Rabe; Steffen Reichel; Philip K. Roche; Graciela Rusch; Anda Ruskule; Anna Sapundzhieva; Kalev Sepp; Ina Maren Sieber; Mateja Šmid Hribar; Simona Stašová; Bastian Steinhoff-Knopp; Małgorzata Stępniewska; Anne Teller; David Vackar; Martine van Weelden; Kristina Veidemane; Henrik Vejre; Petteri Vihervaara; Arto Viinikka; Miguel Villoslada; Bettina Weibel; Grazia Zulian; Show all 83 Authors
- Source:
- One Ecosystem 2018 v.3 pp. e29153
- ISSN:
- 2367-8194
- Subject:
- European Union; biodiversity; decision making; ecosystem services; ecosystems; issues and policy; society; stakeholders
- Abstract:
- ... The European Union (EU) Horizon 2020 Coordination and Support Action ESMERALDA aimed at developing guidance and a flexible methodology for Mapping and Assessment of Ecosystems and their Services (MAES) to support the EU member states in the implementation of the EU Biodiversity Strategy’s Target 2 Action 5. ESMERALDA’s key tasks included network creation, stakeholder engagement, enhancing ecosyste ...
- DOI:
- 10.3897/oneeco.3.e29153
- https://doi.org/10.3897/oneeco.3.e29153